| package ansiterm |
| |
| type escapeState struct { |
| baseState |
| } |
| |
| func (escState escapeState) Handle(b byte) (s state, e error) { |
| escState.parser.logf("escapeState::Handle %#x", b) |
| nextState, err := escState.baseState.Handle(b) |
| if nextState != nil || err != nil { |
| return nextState, err |
| } |
| |
| switch { |
| case b == ANSI_ESCAPE_SECONDARY: |
| return escState.parser.csiEntry, nil |
| case b == ANSI_OSC_STRING_ENTRY: |
| return escState.parser.oscString, nil |
| case sliceContains(executors, b): |
| return escState, escState.parser.execute() |
| case sliceContains(escapeToGroundBytes, b): |
| return escState.parser.ground, nil |
| case sliceContains(intermeds, b): |
| return escState.parser.escapeIntermediate, nil |
| } |
| |
| return escState, nil |
| } |
| |
| func (escState escapeState) Transition(s state) error { |
| escState.parser.logf("Escape::Transition %s --> %s", escState.Name(), s.Name()) |
| escState.baseState.Transition(s) |
| |
| switch s { |
| case escState.parser.ground: |
| return escState.parser.escDispatch() |
| case escState.parser.escapeIntermediate: |
| return escState.parser.collectInter() |
| } |
| |
| return nil |
| } |
| |
| func (escState escapeState) Enter() error { |
| escState.parser.clear() |
| return nil |
| } |